The electrical charge of a neuron at rest is largely the result of a chemical "pump" that transports _____ from inside to outside the neuron.
A)potassium
B)protein ions
C)sodium
D)magnesium

Question

Quizplus · Accepted Answer

The chemical "pump" that transports ions from inside to outside the neuron is the Sodium-Potassium pump which pumps out sodium ions (Na+) and pumps in potassium ions (K+). This results in a higher concentration of positively charged ions outside the neuron and a negative charge inside, creating an electrical charge at rest. Therefore, the correct option is sodium (C).

The Electrical Charge of a Neuron at Rest Is Largely